I'm sitting at a good friend's place in Ontario now, both shots, and a booster, and, I ain't dead yet.
Went as a group of six in late May, to Ontario on a fishing trip. We have made that trip many times. The fishing was phenomenal. Obviously all of us had the jabs and seem no worse for the wear. Several of us have had the covid, including me. My symptoms, and the others in our group, were insignificant. Crossing the border with the ArriveCan document was very fast.